Weather Modification Operations in California
October 1, 1971 – September 30, 1972 | Department of Water Resources
Within the reporting period, October 1, 1971, through September 30, 1972, nine licensees conducted weather modification projects in 12 locations in California. All projects used silver iodide in various forms as the active agent to increase precipitation.
Link To Full DOCUMENT_16__1972
FACT CHECK:
Link To PubChem – Silver Iodide Toxicity
“The major hazards encountered in the use and handling of silver iodide stem from its toxicologic properties. Toxic by all routes (ie, inhalation, ingestion, and dermal contact), exposure to this odorless, light yellow, crystalline substance may occur from its use in seeding clouds for rain-making…
H400 (58.62%): Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]
H410 (100%): Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard]”
Silver iodide may form explosive compounds with sodium, potassium, acetylene, ammonia, and hydrogen peroxide.